Bulletin Severity Rating:Moderate - This security update resolves one privately reported vulnerability in Microsoft Windows. This security update is rated Moderate for Windows XP, Windows Server 2003, Windows Vista, and Windows Server 2008. Windows 7 and Windows Server 2008 R2 are not vulnerable because these operating systems include the feature deployed by this security update. For more information, see the subsection, Affected and Non-Affected Software, in this section.